Home / 13,515.48-18,641.10-11,630.22

Finding the Fourth Proportional to 13,515.48, 18,641.10 and 11,630.22

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Solution

The fourth proportional to 13,515.48, 18,641.10 and 11,630.22 is: 16,040.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.48 : 18,641.10 = 11,630.22 : x
  2. Step 2: Convert to fraction form
    13,515.48/18,641.10 = 11,630.22/x
  3. Step 3: Cross multiply
    13,515.48x = 18,641.10 × 11,630.22
  4. Step 4: Simplify right side
    13,515.48x = 216,800,094.04
  5. Step 5: Solve for x
    x = 216,800,094.04/13,515.48
  6. Step 6: Final answer
    x = 16,040.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.